Global Patent Index - EP 2576083 A4

EP 2576083 A4 20171227 - CORROSION RESISTANT METALLATE COMPOSITIONS

Title (en)

CORROSION RESISTANT METALLATE COMPOSITIONS

Title (de)

KORROSIONSBESTÄNDIGE METALLAT-ZUSAMMENSETZUNGEN

Title (fr)

COMPOSITIONS DE MÉTALLATES RÉSISTANTES À LA CORROSION

Publication

EP 2576083 A4 20171227 (EN)

Application

EP 11790528 A 20110604

Priority

  • US 79452710 A 20100604
  • US 2011039198 W 20110604

Abstract (en)

[origin: US2011300390A1] A composition for application to a metal substrate comprising at least one metallate compound comprising hexafluorzirconate, zirconyl nitrate, and/or yttrium nitrate is provided. The composition may further comprise additives that promote corrosion resistance of the metal substrate, or the adhesion of subsequent coatings, such as one or more rare earth element salts; allontoin, polyvinylpyrrolidone, surfactants, and other additives and co-inhibitors. A metal substrate such as an aluminum or an aluminum alloy substrate coated with a metallate composition according to the present invention is also provided. A process for preparing a coating on a metal substrate to improve the corrosion resistance of the substrate or improve the adhesion of a subsequent coating is also provided. The process comprises treating the metal substrate with an aqueous solution comprising a metallate compound. The process may further comprise one or more pre-treating the substrate, coating the metal substrate with an oxidizing agent and/or coating the metal substrate with one or more rare earth element salts. A process for preparing the metallate coatings of the invention is also provided.

IPC 8 full level

B05D 7/00 (2006.01); B05D 7/16 (2006.01); C23C 22/05 (2006.01); C23C 22/34 (2006.01); C23C 22/68 (2006.01); C23C 22/83 (2006.01)

CPC (source: EP US)

C23C 22/34 (2013.01 - EP US); C23C 22/68 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

US 2011300390 A1 20111208; US 9347134 B2 20160524; EP 2576083 A1 20130410; EP 2576083 A4 20171227; MX 2012013751 A 20130429; MX 347679 B 20170509; WO 2011153518 A1 20111208

DOCDB simple family (application)

US 79452710 A 20100604; EP 11790528 A 20110604; MX 2012013751 A 20110604; US 2011039198 W 20110604